【正文】 es of pact structure, easy operation. It is suitable for wide use in traffic transportantion,dock warehouse and all smallsized industries for goods loading loading and unloading and long distance transportation. Its main content includes the following aspects:The design for winch mechanism The winch mechanism consists of hydraulic motor, reducer, ratchet wheel stop and winch lowers the speed of hydraulic motor for driving the winch drum to wind or unwind the load hoisting wire rope. When working, the motor drives reducer and bring along winch drum rotation, then the wire rope is wound or unwound ,the load will be lift or lowered through pulley block system. Lifting or lowering of the load will be controlled by the rotation direction of the motor. Ratchet wheel stop is used to stop the motion of the drum, holding the load in the air.The design of boom The boom adopts flexible type and boxshaped bodies are fitted on the boom. There are slide supports at outsides of every section of booms. The working range of TMC can outsides of every are fitted on the are slide supports at outsides of every section of booms. The working range of TMC can be realized by the extension or retraction of cylinder body. It uses different steel products in different positions for decrcasing boom’s weight and fully developing steel products’ function.The design of swing mechanism Swing mechanism contains swing bearing and swing driver, the same is, nooil lubricated bearings, wormandwheel steering gear and gydraulic motor. This structure has the advantages of light weight, reliable force on it and smooth action. It can make the load transported in the horizontal plane.Key words TruckMounted Crane ；winch mechanism；Boom ；swing mechanism；Swing bearing 目 錄1 起升機(jī)構(gòu)的設(shè)計(jì)……………………………………………………………1 起升機(jī)構(gòu)的基本參數(shù)計(jì)算…………………………………………1 ……………………………………………………1 ……………………………………………1 鋼絲繩的設(shè)計(jì)與選用 ……………………………………………3 滑輪及滑輪組設(shè)計(jì) ………………………………………………4 選材與材料…………………………………………………4 滑輪直徑D …………………………………………………5 繩最大偏角…………………………………………………5 滑輪軸設(shè)計(jì)…………………………………………………5 滑輪軸承的設(shè)計(jì)與校核……………………………………6 吊鉤的設(shè)計(jì)與選用 ………………………………………………6 選材…………………………………………………………6 構(gòu)造…………………………………………………………6 吊鉤掛架……………………………………………………6 橫梁…………………………………………………………6 卷筒設(shè)計(jì) …………………………………………………………7 名義直徑……………………………………………………7 卷筒的長度…………………………………………………7 卷筒厚度……………………………………………………8 卷筒強(qiáng)度校核………………………………………………8 減速器設(shè)計(jì) ………………………………………………………8 總傳動比及其分配…………………………………………8 傳動裝置的運(yùn)動參數(shù)計(jì)算…………………………………8 齒輪設(shè)計(jì)……………………………………………………9 棘輪設(shè)計(jì)……………………………………………………15 軸的設(shè)計(jì)……………………………………………………162 起重臂的設(shè)計(jì)………………………………………………………………25 三鉸點(diǎn)設(shè)計(jì)…………………………………………………………25 起重臂設(shè)計(jì)…………………………………………………………26 起重臂基本參數(shù)計(jì)算與選用 ………………………………26 起重臂的形狀及主要計(jì)算參數(shù) ……………………………273 回轉(zhuǎn)機(jī)構(gòu)的設(shè)計(jì)……………………………………………………………32 回轉(zhuǎn)支承的選用……………………………………………………32 簡介 …………………………………………………………32 載荷計(jì)算 ……………………………………………………32 阻力矩計(jì)算 …………………………………………………33 校核 …………………………………………………………34 回轉(zhuǎn)減速機(jī)輸出扭矩 ………………………………………34 回轉(zhuǎn)減速器的選用…………………………………………………35 支腿反力的計(jì)算……………………………………………………36參考文獻(xiàn) ………………………………………………………………………37設(shè)計(jì)總結(jié) ………………………………………………………………………38致謝 ……………………………………………………………………………391起升機(jī)機(jī)構(gòu)設(shè)計(jì) 起升機(jī)構(gòu)的基本參數(shù)計(jì)算 傳動方案 起升機(jī)構(gòu)是起升貨物并使它產(chǎn)生升降運(yùn)動的機(jī)構(gòu)，它是起重機(jī)中最主要和最基本的機(jī)構(gòu)。 [關(guān)鍵詞]: 隨車起重機(jī)。為了減輕吊臂自重，充分發(fā)揮鋼材的作用，吊臂的不同部位采用不同強(qiáng)度的鋼材。減速機(jī)用來降低液壓馬達(dá)驅(qū)動速度，卷筒用于繞進(jìn)或放出鋼絲繩。摘 要，它將起重和運(yùn)輸相結(jié)合，不僅節(jié)省勞動力，而且極大的減小了工作強(qiáng)度、提高了工作效率。本文主要內(nèi)容如下：起升機(jī)構(gòu)設(shè)計(jì) 起升機(jī)構(gòu)包括液壓馬達(dá)、減速機(jī)、棘輪停止器和卷筒。箱形結(jié)構(gòu)內(nèi)裝有伸縮油缸，臂的每個外節(jié)段內(nèi)裝有滑塊支座，因此起重機(jī)的變幅可通過液壓缸實(shí)現(xiàn)。這種結(jié)構(gòu)自重輕、受力合理、運(yùn)行平穩(wěn)，可以使機(jī)構(gòu)在水平面內(nèi)運(yùn)輸貨物。回轉(zhuǎn)機(jī)構(gòu)。(1)起升速度，由已知得(2)鋼絲繩速度：V繩＝V升ɑa：滑輪組倍率，a=6V繩＝126=72m/min(3)鋼絲繩速度（按纏繞時第三層計(jì)算）：n卷＝V繩／[（D+4+d）π]==D：卷筒直徑 d：鋼絲繩直徑(4)初步選定減速比為i＝，則馬達(dá)轉(zhuǎn)速n馬＝n卷i＝=3000r/min(5)卷筒扭矩（按最大計(jì)算）M卷＝S[D＋9d]／[2η卷]S：鋼絲繩單繩拉力,η卷：卷筒的效率，M卷＝[(160+610)103]／2=1410Nm(6)馬達(dá)扭矩：M馬=M卷／(iη)η=η卷η軸承3η開齒η閉齒η卷：卷筒效率, η軸承：軸承傳動效率, η開齒：開式齒輪傳動效率 η閉齒：閉式齒輪傳動效率 η==M==由馬達(dá)轉(zhuǎn)速、扭矩選用馬達(dá)MMFB20US排量：qm=轉(zhuǎn)速 100r/min~3200r/min最大輸出扭矩 64N/min(7) 由馬達(dá)轉(zhuǎn)速，得出油泵的容量：Q=n馬：馬達(dá)轉(zhuǎn)速已知為3000r/minq：馬達(dá)排量, qm=η馬容：馬達(dá)容積效率,Q==(8)重物提升功率N重=V升Q起=126300／60=(9)油泵驅(qū)動功率N泵=N重／ηη=η卷η輪組η減η馬總η泵總η卷：卷筒效率, η輪組：滑輪組效率,η輪：導(dǎo)向輪效率,η減：減速機(jī)效率,η馬總：馬達(dá)總效率,η泵總：油泵總效率,則：η==N泵= =(10)發(fā)動機(jī)轉(zhuǎn)速,標(biāo)準(zhǔn)值n發(fā)=2600r/min(11)泵的排量q===Q：油泵容量=η容：容積效率=q= 由泵的排量、驅(qū)動功率選用： 泵 CBB32排量 qm=32ml/r鋼絲繩受力復(fù)雜，內(nèi)部應(yīng)力難以計(jì)算。采用單聯(lián)滑輪組，它結(jié)合導(dǎo)向滑輪使用，倍率為6，這樣可以用較小的拉力吊起較重的物品。因此一般情況下γ0=4~6。采用鍛造的單鉤，制造與使用方便，梯形斷面，受力情況合理。推力球軸承選：校核： C0=S0P0﹤C0aS0：安全系數(shù),為2P0：對a=90176。起升機(jī)構(gòu)中卷筒的繞繩量相應(yīng)增加。=AA：原與卷筒層數(shù)有關(guān)的系數(shù), A=2S：鋼絲繩最大拉力P：δ：卷筒厚度15mm